There are more than ________ genetic syndromes known to cause intellectual disability

Video chatting, e-mail, and texting may influence interpersonal relationships because they increase the ________ of people even if they do not affect their physical proximity

a. propinquity b. similarity c. reciprocal liking d. social exchange

Which gender discrimination shows up at the child's youngest age?

a. Understanding that one's gender does not change b. Correctly identifying men vs. women in pictures c. Correctly saying parents' labels as "mommy" or "daddy" d. Intermodal matching male/female voices with faces